Figure 9. Human findings demonstrating that saccade onsets are locked to the phase of ongoing alpha oscillations.

A) MEG and eye-tracking data were recording while participants explored images to be remember. The MEG epochs were aligned to saccades onset and then analysed. B) Significant phase-locked in the 12-14 Hz alpha-band was observed over posterior sensors. C) A time-frequency representation of the phase-locking index over epochs locked to saccade onsets. The phase-locking was constrained to the 12-14 Hz band about 200 ms prior to saccade onset and it was stronger for images later remembered compared to forgotten. D) MEG and eye-tracking data were recorded in a natural reading paradigm. E) A time-frequency representation of power averaged over epochs locked to saccade onset. The alpha power remained strong during reading, i.e. it was not depressed or blocked with saccades onset. F) Robust phase-locking was observed in the alpha-band for epochs aligned to saccade onset. The phase-locking was stronger for saccade prepared toward low- compared to high-frequency words in the sentence. Reproduced from (312,313)